Carl faber



(No Mdel.)

C. FABER. l tPENGIL SHARPENER. l

No. 482,826. Patented'Sept. 20, 1892.

UNITED STATES PATENT OFFICE.

CARL FABER, OF NUREMBERG, GERMANY.

PENCIL-SHARPENER.

SPECIFICATION forming part of Letters Patent No. 482,826, datedSeptember 20,1892.

Application iiled April l, 1892. Serial No. 427,418. (No model.)

To all whom it may concern.-

Be it known that I, CARL FABER, a subject of the King of Bavaria, and aresident of Nuremberg, in the Kingdom of Bavaria, German Empire, haveinvented certain new and useful Improvements in Pencil-Sharpeners, ofwhich the following is a full and exact speci- Iication.

The novel features of my improved pencilsharpener are the followingones: First, the sharpening-blade being provided with two sharp edgesand the edges being interchangeable, the device may be used a long timebefore a sharpening of the blade becomes necessary; secondly, the blademay be removed very easily in order to be sharpened, andlikewise besecured in its place again; thirdly, the blade may be adjusted to itsright place, notwithstanding the wear occasioned by sharpening itrepeatedly.

These improvements are attained by the means more fully describedhereinafter with reference to the accompanying sheet of drawings, onwhich- Figure l is a front elevation of my improved pencil-Sharpener.Fig. 2 is a side view of the same; Fig. 3, arear elevation, and Fig. 4 aplan view, of the same. Fig. 5 is a side elevation of a modification.Fig. 6 is an under and Fig. 7 an upper view of another modication.

Similar lettersreferto similar parts throughout the several views.

a is Ithe iiat frame or body of the device, having a conical bore bpassing from its front to its rear end and placed laterally of thecenter line of the body a., as will be seen at Fig. 3. Part of the upperside of the body a is formed as an incline d, and on one side of thelatter there is a longitudinal slot b', arranged vertically above theaxis of the conical bore b and communicating with the same. Upon theincline dthere'is placed the blade c, having two longitudinal sharpenededges c and o2. Near to the upper end of the incline d I also provide astop g. The blade c is in its center provided with a hole through whichpasses the threaded end of a screw f, fitting into a correspondingthreaded hole in the body a on the side of the conical bore b. Thecentral hole of the blade c is of a diameter somewhat largerthan that ofthe screw j. On.

the side of the body a, below the level of the incline (1,1 provide twoadj ustingscrews e e. The screw f being loosened, the blade c may beadjusted to its right position by pushing the same up against the stopg, and by screwing the screws e e a little on or 0E, as may be required.When the sharp edge c occupies the requisite position in relation to theslot b', the screw f is turned so as to secure the blade c. In order topoint a pencil, it is introduced into the Wider end of the conical boreb and turned around on its axis, whereby the edge c of the blade csharpens the pencil in a like manner as in the similar devices employed'hitherto. When through extensive use the edge c is no more in workingcondition, the screw f is loosened and entirely removed, and thereafterthe blade c is replaced in the inverse position, the edge c2 taking theplace of c. Thus my improved pencil-Sharpener may be used twice as longas if the blade c had only one sharp edge. When both edges c and c2 havebecome dull, the screw f and blade c are removed, the edges of thelatter are sharpened anew, and the blade replaced in the describedmanner. The breadth of the blade cis of course diminished by sharpeningits edges; but owing to its central hole being wider than the end of thescrew f it is still possible to bring the edge c or c2, respectively,into the requisite position with respect to the slot b.

In the modiication illustrated by Fig. 5 the screw fis entered into thebodya from below, and the hole in the said bodya is smooth and somewhatwider than the threaded portion of the screw f, while the central holein the blade c is threaded in order to receive the end of said screw f.The manner of employing the .pencil-Sharpener is the same as describedabove.

In Figs. 6 and 7 Ihave shown another modified construction of myimproved pencil- Sharpener. The arrangement of the screw f and blade c,and the manner of securing the same to the body a, are the same asrepresented on Fig. 5 and described above with reference to that figure.The adj usting-'screws e and c are, however, arranged in a mannerdilerent from that shown in the other forms of construction. They arepassed through the body a parallel to the screw f, and. are provided atICO their upper ends above the incline olwithec-A centric-pins e3 e,fitting into square holes c3 c4 of the blade c. It is apparent that theadjustment of the edge c will be attained by 5 turning the screws e e asrequired.

Having thus fully described the nature of my invention, what I desire tosecure by Letters Patent of the United States is y 1. In apencil-Sharpener, the combination,

ro with the body a., having a conical bore b, slot b', and incline d, ofthe reversible blade cand the screw f, for the purpose as described.

2. In a pencil-Sharpener, the combination,

CARL FABER.

jing witnesses.

Witnesses:

HEINRICH G. W. EPPELEIN, THOMAS WEISS.

